10.4: Inferences Concerning the Difference Between Means Using Two Independent Samples (10)

10.5: Inferences Concerning the Difference Between Proportions Using Two Independent Samples (6)

10.6: Inferences Concerning the Ratio of Variances Using Two Independent Samples (6)

10: Chapter Exercises (3)

10: Active Examples (10)

Chapter 11: Applications of Chi-Square

11.1: Cooling a Great Hot Taste

11.2: Chi-Square Statistic (4)

11.3: Inferences Concerning Multinomial Experiments (11)

11.4: Inferences Concerning Contingency Tables (11)

11: Chapter Exercises (10)

11: Active Examples (7)

Chapter 12: Analysis of Variance

12.1: Time Spent Commuting to Work

12.2: Introduction to the Analysis of Variance Technique (3)

12.3: The Logic Behind ANOVA (2)

12.4: Applications of Single-Factor ANOVA (17)

12: Chapter Exercises (13)

12: Active Examples (6)

Chapter 13: Linear Correlation and Regression Analysis

13.1: Wheat! Beautiful Golden Wheat!

13.2: Linear Correlation Analysis (6)

13.3: Inferences about the Linear Correlation Coefficient (14)

13.4: Linear Regression Analysis (3)

13.5: Inferences Concerning the Slope of the Regression Line (4)

13.6: Confidence Interval for Regression (5)

13.7: Understanding the Relationship between Correlation and Regression

13: Chapter Exercises (4)

13: Active Examples (9)

Chapter 14: Elements of Nonparametric Statistics

14.1: Teenagers' Attitudes

14.2: Nonparametric Statistics

14.3: Comparing Statistical Tests

14.4: The Sign Test (9)

14.5: The Mann-Whitney U Test (6)

14.6: The Runs Test (8)

14.7: Rank Correlation (4)

14: Chapter Exercises (8)

14: Active Examples (10)

Questions Available within WebAssign

Most questions from this textbook are available in WebAssign. The online questions are identical to the textbook questions except for minor wording changes necessary for Web use. Whenever possible, variables, numbers, or words have been randomized so that each student receives a unique version of the question. This list is updated nightly.